Improvement of an Inverted Microstrip Line-Based Microwave Tunable Phase-Shifter Using Liquid Crystal
Improvement of an Inverted Microstrip Line-Based Microwave Tunable Phase-Shifter Using Liquid Crystal
复制标题
基于倒置微带线的液晶微波可调谐移相器的改进
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
F. Huret
中科院分区：
文献类型：
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作者：
N. Martin;P. Laurent;G. Prigent;P. Gelin;F. Huret
本文介绍了基于液晶的电调相器的研究。首先，我们的研究涉及到的商用液晶的介电特性使我们能够确定其介电各向异性。其次，对两种移相器结构进行了研究。这两种结构都提出了具有共面接入的倒置微带线，但它们基于不同的传输线设计。对第一个进行的测量证明了有效的相移。第二次在性能上有了很大的提高。
This paper deals with the study of electrically tunable phase-shifters based on the use of liquid crystals. First, the dielectric characterization of the commercial liquid crystal involved in our investigations allowed us to determine its dielectric anisotropy. Secondly, two phase-shifter configurations were studied. Both structures propose inverted microstrip line with coplanar accesses, but they are based on a different design of the transmission line. The measurements carried out with the first one evidenced an efficient phase shift. The second one showed considerable improvement in performances.